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Scavenging activity on superoxide

Microbial sources crude EPS, EPS-1 and EPS-2 Paenibacillus polymyxa (previously Bacillus polymyxa) EJS-3 scavenging activity on superoxide and hydroxyl radicals in-vitro. EPS-1 increase SOD, CAT and GSH-Px activities decrease MDA levels in-vivo improve the total antioxidant capacity in livers and serum of D-Gal induced aging mice in-vivo [108] [109]... [Pg.18]

EPSs Bacillus licheniformis UD061 strong scavenging activities on superoxide and hydroxyl radicals in-vitro [113][114]... [Pg.18]

Evaluation of the Scavenging Activity on Superoxide Anion Radical (O )... [Pg.169]

GBEP Ginko biloba scavenger activity on DPPH radical, hydroxyl radical and superoxide anion in-vitro [121]... [Pg.18]

Four polysaccharide fractions (PAVF 1,11-a and III) were extracted from the fruit calyx of Physalis alkekengi var. francheti and their chemical compositions were determined. The crude polysaccharide fractions (FCPs) and all purified fractions (PAVF I, Il-a and III) were evaluated for their antioxidant activity by using hydroxyl radical assay (.OH), superoxide radical assay and DPPH assay. All tested compoxmds showed a dose-dependent radical-scavenging activity. Among all, PAVF I had the best scavenger activity on DPPH radical, hydroxyl radical and superoxide anion, and its activity was more pronounced than Vc used as the standard [116]. [Pg.20]

Japanese scientists believe that the anti-oketsu effects of rhubarb are brought about by the inhibition of the production of nitric oxide, inhibition of platelet aggregation, antiallergic effects, and its antiinflammatory properties. Matsuda et al. (2001) studied and reported that the methanolic extracts from five kinds of rhubarb were found to show scavenging activity for l,l-diphenyl-2-picrylhy-drazyl (DPPH) radical and superoxide anion radical (02 ) generated by the xanthine/xanthine oxidase system and/or on lipid peroxidation by terf-butyl hydroperoxide (f-BuOOH) in the erythrocyte membrane ghost system. [Pg.524]

Superoxide radicals are another factor in oxidative damage. They can be determined with nitrobluetetrazolium (NBT), which then forms the colourless formazan. When melanoidins scavenge the superoxide radicals, the colour of the NBT persists.490,491 The activity of a glucose-glycine melanoidin on superoxide radicals is equivalent to the effect of 16 units of superoxide dismutase. The effect of the HMM and LMM fractions of this melanoidin is almost the same. The reaction rate constant of the melanoidin was markedly higher than that of ascorbic acid. If this were due to the reductone structures embedded in the melanodin, it is difficult to explain why the reducing power of the melanoidins is only 0.7 that of ascorbic acid.490... [Pg.137]

Mulberroside F (104) showed moderate inhibitory effects on tyrosinase activity and on the melanin formation of melan-a cells. It also exhibited superoxide scavenging activity that is involved in the protection against auto-oxidation [62]. The geranylated stilbenes 81 and chlorophorin from Chlorophora excelsa [51], prenylated ones 4-prenyloxyresveratrol and artocarbene (72) from Artocarpus incisus [528] all demonstrated tyrosinase inhibitory activity (ICso 96, 1.3, 0.66 and 2.45 //M, respectively). [Pg.610]

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Scavenging activity

Superoxides, scavenging

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